CVE-2014-0143
The MITRE CVE dictionary describes this issue as:
Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via a crafted catalog size in (1) the parallels_open function in block/parallels.c or (2) bochs_open function in bochs.c, a large L1 table in the (3) qcow2_snapshot_load_tmp in qcow2-snapshot.c or (4) qcow2_grow_l1_table function in qcow2-cluster.c, (5) a large request in the bdrv_check_byte_request function in block.c and other block drivers, (6) crafted cluster indexes in the get_refcount function in qcow2-refcount.c, or (7) a large number of blocks in the cloop_open function in cloop.c, which trigger buffer overflows, memory corruption, large memory allocations and out-of-bounds read and writes.
Find out more about CVE-2014-0143 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue affects the versions of kvm package as shipped with Red Hat
Enterprise Linux 5.
This issue affects the versions of qemu-kvm package as shipped with Red Hat
Enterprise Linux 6.
CVSS v2 metrics
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:A/AC:H/Au:N/C:P/I:P/A:P |
| Access Vector | Adjacent Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| RHEV Agents (vdsm) (qemu-kvm-rhev) | RHSA-2014:0421 | 2014-04-22 |
| Red Hat Enterprise Linux OpenStack Platform 3.0 (qemu-kvm-rhev) | RHSA-2014:0435 | 2014-04-24 |
| Red Hat Enterprise Linux 6 (qemu-kvm) | RHSA-2014:0420 | 2014-04-22 |
| Red Hat Enterprise Linux OpenStack Platform 4.0 (qemu-kvm-rhev) | RHSA-2014:0434 | 2014-04-24 |
| RHEV Hypervisor for RHEL-6 (rhev-hypervisor6) | RHSA-2014:0674 | 2014-06-09 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) | qemu-kvm-rhev | Will not fix |
| Red Hat Enterprise Linux 7 | qemu-kvm | Not affected |
| Red Hat Enterprise Linux 5 | kvm | Fix deferred |
Acknowledgements
These issues were discovered by Kevin Wolf and Stefan Hajnoczi of Red Hat Inc.CVE description copyright © 2017, The MITRE Corporation